School of Mathematics and Physics - UQ eSpace
http://espace.library.uq.edu.au/
The University of QueenslandenFez http://blogs.law.harvard.edu/tech/rssAn alternative stock-recruitment function for age-structured models
http://espace.library.uq.edu.au/view/UQ:410469
In this work I introduce a probabilistic stock-recruitment function, of the Cushing family, that stands as an alternative to the canonical formulas provided by Beverton-Holt and Ricker, among others. I embed this function in a mathematically tractable (dynamic linear) population model, which renders inference of abundance-at-age and unknown biological parameters (natural mortality, virgin stock's egg production rate, and steepness), as well as fisheries parameters (catchability and selectivity), easier than with canonical representations. To assist management, I provide formulas for exact and approximate reference points, associated with Maximum Sustainable Yield (MSY) and Maximum Excess Recruitment (MER). I also introduce a new summary statistic, called bottleneck abundance ratio, which requires no knowledge of steepness under the proposed stock-recruitment function. With simulated data and the concept of Pretty Good Yield, I generate bounds for MSY- and MER-based reference points and show that those based on the new function have greater resilience to uncertainty about steepness. As a case study, I apply a state-space model to the US Gulf menhaden fishery, 1964–2004. Results suggest higher than previously considered natural mortality and a discernible connection between parental stock abundance and recruitment, undetected with Beverton-Holt and Ricker models.2016-11-01T00:22:23Z
Lemos, Ricardo T. An alternative surplus production model
http://espace.library.uq.edu.au/view/UQ:365497
2015-07-28T00:13:05Z
Rankin, Peter Sheldon; Lemos, Ricardo T. Analysing commercial catch and effort data from a penaeid trawl fishery - A comparison of linear models, mixed models, and generalised estimating equations approaches
http://espace.library.uq.edu.au/view/UQ:221194
Statistical methods are often used to analyse commercial catch and effort data to provide standardised fishing effort and/or a relative index of fish abundance for input into stock assessment models. Achieving reliable results has proved difficult in Australia's Northern Prawn Fishery (NPF), due to a combination of such factors as the biological characteristics of the animals, some aspects of the fleet dynamics, and the changes in fishing technology. For this set of data, we compared four modelling approaches (linear models, mixed models, generalised estimating equations, and generalised linear models) with respect to the outcomes of the standardised fishing effort or the relative index of abundance. We also varied the number and form of vessel covariates in the models. Within a subset of data from this fishery, modelling correlation structures did not alter the conclusions from simpler statistical models. The random-effects models also yielded similar results. This is because the estimators are all consistent even if the correlation structure is mis-specified, and the data set is very large. However, the standard errors from different models differed, suggesting that different methods have different statistical efficiency. We suggest that there is value in modelling the variance function and the correlation structure, to make valid and efficient statistical inferences and gain insight into the data. We found that fishing power was separable from the indices of prawn abundance only when we offset the impact of vessel characteristics at assumed values from external sources. This may be due to the large degree of confounding within the data, and the extreme temporal changes in certain aspects of individual vessels, the fleet and the fleet dynamics.2010-11-17T13:45:12Z
Bishop, J; Venables, WN; Wang, YG Analysis of a continuous-variable quadripartite cluster state from a single optical parametric oscillator
http://espace.library.uq.edu.au/view/UQ:229606
2011-02-20T00:01:30Z
Midgley, S. L. W.; Olsen, M. K.; Bradley, A. S.; Pfister, O. Analysis of a Quantum Measurement
http://espace.library.uq.edu.au/view/UQ:247769
A specific measurement model based on quantum nondemolition monitoring of oscillator quanta is used to illustrate the essential elements of the quantum theory of measurement, viz., state reduction and existence of a ‘‘pointer basis,’’ recently discussed by Zurek. The form of the interaction between the meter and its environment determines the system observable recorded by the meter. In our model this quantity is the square of the oscillator’s quanta. The corresponding pointer basis states are the meter coherent states. The more accurate the measurement the more excited (and classical) these states become. We show explicitly that the state reduction of the system during measurement is due to nonunitary evolution resulting from the meter-environment coupling. A particular realization of the environment as a photoelectron counter is discussed.2011-09-08T20:29:39Z
Walls, D. F.; Collet, M. J.; Milburn, G. J. Analysis of a relaxation scheme for a nonlinear Schrodinger equation occurring in plasma physics
http://espace.library.uq.edu.au/view/UQ:417505
This paper is devoted to the analysis of a relaxation-type numerical scheme for a nonlinear Schrödinger equation arising in plasma physics. The scheme is shown to be preservative in the sense that it preserves mass and energy. We prove the well-posedness of the semidiscretized system and prove convergence to the solution of the time-continuous model.2017-01-13T16:05:46Z
Oelz, Dietmar; Trabelsi, Saber Analysis of homogeneous/non-homogeneous nanofluid models accounting for nanofluid-surface interactions
http://espace.library.uq.edu.au/view/UQ:398605
2016-08-03T16:39:02Z
Ahmad, R. Analysis of horse mackerel, blue whiting, and hake catch data from Portuguese surveys (1989-1999) using an integrated GLM approach
http://espace.library.uq.edu.au/view/UQ:265935
2012-01-24T13:42:13Z
Sousa, Pedro; Lemos, Ricardo T.; Gomes, Manuel C.; Azevedo, Manuela Analysis of human immunodeficiency virus type 1 drug resistance in children receiving nucleoside analogue reverse-transcriptase inhibitors plus nevirapine, nelfinavir, or ritonavir (Pediatric AIDS Clinical Trials Group 377)
http://espace.library.uq.edu.au/view/UQ:221200
2010-11-17T13:49:01Z
Eshleman, S. H.; Krogstad, P.; Jackson, J. B.; Wang, Y. G.; Lee, S.; Wei, L. J.; Cunningham, S.; Wantman, M.; Wiznia, A.; Johnson, G.; Nachman, S.; Palumbo, P. Analysis of the genome and transcriptome of Cryptococcus neoformans var. grubii reveals complex RNA expression and microevolution leading to virulence attenuation
http://espace.library.uq.edu.au/view/UQ:329323
2014-05-05T15:25:10Z
Janbon, Guilhem; Ormerod, Kate L.; Paulet, Damien; Byrnes III, Edmond J.; Yadav, Vikas; Chatterjee, Gautam; Mullapudi, Nandita; Hon, Chung-Chau; Billmyre, R. Blake; Brunel, François; Bahn, Yong-Sun; Chen, Weidong; Chen, Yuan; Chow, Eve W. L.; Coppée, Jean-Yves; Floyd-Averette, Anna; Gaillardin, Claude; Gerik, Kimberly J.; Goldberg, Jonathan; Gonzalez-Hilarion, Sara; Gujja, Sharvari; Hamlin, Joyce L.; Hsueh, Yen-Ping; Ianiri, Giuseppe; Jones, Steven; Kodira, Chinnappa D.; Kozubowski, Lukasz; Lam, Woei; Marra, Marco; Mesner, Larry D.; Mieczkowski, Piotr A.; Moyrand, Fréderique; Nielsen, Kirsten; Proux, Caroline; Rossignol, Tristan; Schein, Jacqueline E.; Sun, Sheng; Wollschlaeger, Carolin; Wood, Ian A.; Zeng, Qiandong; Neuvéglise, Cécile; Newlon, Carol S.; Perfect, John R.; Lodge, Jennifer K.; Idnurm, Alexander; Stajich, Jason E.; Kronstad, James W.; Sanyal, Kaustuv; Heitman, Joseph; Fraser, James A.; Cuomo, Christina A.; Dietrich, Fred S. Analysis of yearlong performance of differently tilted photovoltaic systems in Brisbane, Australia
http://espace.library.uq.edu.au/view/UQ:302659
2013-06-11T15:02:44Z
Yan, Ruifeng; Saha, Tapan Kumar; Meredith, Paul; Goodwin, Shane Analytical methods for a stochastic mainland-island metapopulation model
http://espace.library.uq.edu.au/view/UQ:179590
The term ‘metapopulation’ is used to describe individuals of a species living as a group of local populations in geographically separate, but connected, habitat patches (Levins 1970, Hanski 1999). Patches may become empty through local extinction and empty patches may be recolonised by migrants from other local populations. A balance between local extinction and colonisation may be reached which allows the metapopulation to persist (Hanski 1999). The relationship between these two processes is therefore an important consideration when formulating mathematical metapopulation models. We suppose that events of the same type occur in seasonal phases, so that extinction events only occur during the extinction phase and colonisation events only occur during the colonisation phase, and that these phases alternate over time. They may correspond to two parts of an annual cycle, for example, where local populations are prone to extinction during winter while new populations establish during spring.2009-08-05T14:13:46Z
Buckley, F. M.; Pollett, P. K. Analytical methods for a stochastic mainland-island metapopulation model
http://espace.library.uq.edu.au/view/UQ:219972
2010-11-07T00:13:29Z
Buckley, F. M.; Pollett, P. K. Analytical study of heat transfer from elliptical cylinder in liquid metals
http://espace.library.uq.edu.au/view/UQ:367311
Previous theoretical Nusselt numbers derived for the heat transfer to liquid metals flowing past an elliptical cylinder were based on the usual assumptions associated with inviscid potential flow. Although, in liquid metals, the thickness of the thermal boundary layer is much greater than the thickness of the hydrodynamic boundary layer, the effects of the thin hydrodynamic boundary layer on the heat transfer process cannot be neglected. In this study, the influence of a thin hydrodynamic boundary layer on the heat transfer from a single elliptical cylinder to liquid metals having low Prandtl numbers (0.001-0.03) is investigated under isothermal and isoflux boundary conditions. Two separate analytical heat transfer models, viscous and inviscid, are developed to clarify the discrepancy between previous results. It is demonstrated that the inviscid model gives higher heat transfer coefficients than the viscid model for both thermal boundary conditions, and the disagreement between the inviscid and viscous flow models originates due to the neglect of the hydrodynamic boundary layer compared to the thermal boundary layer and the effect of the separation of flow on heat transfer.2015-08-16T16:39:02Z
Ahmad, R.; Khan, W. A. Analytic Modal Revision For Multi-Agent Systems
http://espace.library.uq.edu.au/view/UQ:9704
We present two models of hierarchical structured multi-agents, and we describe how to obtain a modal knowledge base from distributed sources. We then propose a computationally oriented revision procedure for modal knowledge bases. This procedure is based on a labelled tableaux calculi supplemented with a formalism to record the dependencies of the formulae. The dependencies are then used to reconstruct the minimal inconsistent sets, and the sub-formulae responsible for the inconsistencies are revised according to well-defined chains of modal functions.2005-03-21T00:00:00Z
Di Giusto, Paolo; Governatori, Guido Analytic perturbation theory and its applications
http://espace.library.uq.edu.au/view/UQ:414456
2016-12-06T13:59:55Z
Avrachenkov, K.; Filar, J. A.; Howlett, P. G. Analyzing neurite outgrowth from explants by fitting ellipses
http://espace.library.uq.edu.au/view/UQ:193509
2010-01-21T15:21:56Z
Haines, Carmen; Goodhill, Geoffrey J. An analytical description of the disruption of star clusters in tidal fields with an application to Galactic open clusters
http://espace.library.uq.edu.au/view/UQ:265873
2012-01-24T11:54:38Z
Lamers, H. J. G. L. M.; Gieles, M.; Bastian, N.; Baumgardt, H.; Kharchenko, N. V.; Portegies Zwart, S. An Argumentation-Theoretic Characterization of Defeasible Logic
http://espace.library.uq.edu.au/view/UQ:9669
Defeasible logic is an efficient non-monotonic logic that is defined only proof-theoretically. It has potential application in some legal domains. We present here an argumentation semantics for defeasible logic that will be useful in these applications. Our development differs at several points from existing argumentation frameworks since there are several features of defeasible logic that have not been addressed in the literature.2005-03-24T00:00:00Z
Governatori, Guido; Maher, Michael J. A narrow optical gap small molecule acceptor for organic solar cells
http://espace.library.uq.edu.au/view/UQ:290928
A new, strongly absorbing narrow optical gap small molecule acceptor YF25 is reported. When YF25 is blended with the archetypal donor P3HT, significant photocurrent red of the polymer optical gap is produced in addition to the normal response generated by the donor polymer. Using EQE and TRMC measurements we show that the additional photocurrent red of the donor edge is derived from excitation of the electron acceptor and subsequent hole-transfer to P3HT.2013-02-10T00:51:18Z
Fang, Yuan; Pandey, Ajay K.; Nardes, Alexandre M.; Kopidakis, Nikos; Burn, Paul L.; Meredith, Paul An asymptotic existence result on compressed sensing matrices
http://espace.library.uq.edu.au/view/UQ:355607
2015-04-07T00:13:23Z
Bryant, Darryn; Catháin, Padraig Ó. An asymptotic solution to the cycle decomposition problem for complete graphs
http://espace.library.uq.edu.au/view/UQ:217124
2010-09-26T00:03:53Z
Bryant, Darryn; Horsley, Daniel A National Reference Station infrastructure for Australia - Using telemetry and central processing to report multi-disciplinary data streams for monitoring marine ecosystem response to climate change
http://espace.library.uq.edu.au/view/UQ:250340
As part of a broader Integrated Marine Observing System (IMOS), the marine community in Australia is developing a National Reference Station (NRS) network to monitor coastal processes. IMOS is an Australian Government initiative established under the National Collaborative Research Infrastructure Strategy (NCRIS). The aim of NCRIS is to provide researchers with access to the infrastructure and networks to build automated and ongoing in situ observing systems necessary to undertake world-class research. The NRS network fulfils this role as part of the Australian National Mooring Network, which is one of eleven IMOS facilities. The nine stations around Australia continue and expand the three existing sites where monthly water quality data have been collected since the 1940s. The overall aim of the NRS network is to provide the data to examine interactions between major coastal boundary currents and continental shelf ecosystems, especially in the context of climate change. To do this each NRS will provide long-term data series of physical and chemical parameters alongside community composition and primary (phytoplankton) and secondary (zooplankton) biological production and diversity. This will be achieved using a combination of in situ measurements (moored sensors) and monthly visits to collect samples for laboratory analysis. The NRS will provide critical baseline data to examine the impact of human stresses (such as climate change and eutrophication) on Australian marine ecosystems.2011-09-10T18:20:15Z
Lynch, T. P.; Roughan, M.; Mclaughlan, D.; Hughes, D.; Cherry, D.; Critchley, G.; Allen, S.; Pender, L.; Thompson, P.; Richardson, A. J.; Coman, F.; Steinberg, C.; Terhell, D.; Seuront, L.; Mclean, C.; Brinkman, G.; Meyers, G. A natural stochastic extension of the sandpile model on a graph
http://espace.library.uq.edu.au/view/UQ:308860
2013-09-11T16:56:35Z
Chan, Yao-ban; Marckert, Jean-François; Selig, Thomas Ancilla models for quantum operations: for what unitaries does the ancilla state have to be physical?
http://espace.library.uq.edu.au/view/UQ:299952
2013-05-12T00:48:50Z
Jiang, Zhang; Piani, Marco; Caves, Carlton M. Anderson localization and nonlinearity in flat bands
http://espace.library.uq.edu.au/view/UQ:320760
We explore the interplay between Anderson localization and Kerr nonlinearity in a lattice system containing intersecting flat and dispersive bands. The disordered system supports two distinct types of modes: high energy modes experience conventional Anderson localization. Low energy modes have a much shorter localization length, but are also highly sparse, consisting of multiple, well-separated peaks. Nonlinearity introduces different regimes of wavepacket spreading, determined by which types or modes are strongly coupled together. The spreading of localized excitations can either be massively enhanced, or suppressed, depending on the strength of nonlinearity.2014-01-14T00:26:38Z
Leykam, Daniel; Flach, Sergej; Bahat-Treidel, Omri; Desyatnikov, Anton S. A near-nhek/cft correspondence
http://espace.library.uq.edu.au/view/UQ:269827
2012-03-14T11:20:22Z
Rasmussen, Jorgen An edge-based framework for enumerating 3-manifold triangulations
http://espace.library.uq.edu.au/view/UQ:381055
A typical census of 3-manifolds contains all manifolds (under various constraints) that can be triangulated with at most n tetrahedra. Although censuses are useful resources for mathematicians, constructing them is difficult: the best algorithms to date have not gone beyond n=12. The underlying algorithms essentially (i) enumerate all relevant 4-regular multigraphs on n nodes, and then (ii) for each multigraph G they enumerate possible 3-manifold triangulations with G as their dual 1-skeleton, of which there could be exponentially many. In practice, a small number of multigraphs often dominate the running times of census algorithms: for example, in a typical census on 10 tetrahedra, almost half of the running time is spent on just 0.3% of the graphs. Here we present a new algorithm for stage (ii), which is the computational bottleneck in this process. The key idea is to build triangulations by recursively constructing neighbourhoods of edges, in contrast to traditional algorithms which recursively glue together pairs of tetrahedron faces. We implement this algorithm, and find experimentally that whilst the overall performance is mixed, the new algorithm runs significantly faster on those "pathological" multigraphs for which existing methods are extremely slow. In this way the old and new algorithms complement one another, and together can yield significant performance improvements over either method alone.2016-03-01T04:17:57Z
Burton, Benjamin A.; Pettersson, William An efficient algorithm for granular dynamics simulations with complex-shaped objects
http://espace.library.uq.edu.au/view/UQ:316034
2013-11-27T06:56:08Z
Alonso-Marroquin, Fernando; Wang, Yucang An efficient algorithm for rare-event probability estimation, combinatorial optimization, and counting
http://espace.library.uq.edu.au/view/UQ:155571
Although importance sampling is an established and effective sampling and estimation technique, it becomes unstable and unreliable for high-dimensional problems. The main reason is that the likelihood ratio in the importance sampling estimator degenerates when the dimension of the problem becomes large. Various remedies to this problem have been suggested, including heuristics such as resampling. Even so, the consensus is that for large-dimensional problems, likelihood ratios (and hence importance sampling) should be avoided. In this paper we introduce a new adaptive simulation approach that does away with likelihood ratios, while retaining the multi-level approach of the cross-entropy method. Like the latter, the method can be used for rare-event probability estimation, optimization, and counting. Moreover, the method allows one to sample exactly from the target distribution rather than asymptotically as in Markov chain Monte Carlo. Numerical examples demonstrate the effectiveness of the method for a variety of applications.2008-10-03T16:16:12Z
Botev, Z. I.; Kroese, D. P. An efficient GPU-based parallel algorithm for pricing multi-asset American options
http://espace.library.uq.edu.au/view/UQ:339901
2014-09-17T16:05:11Z
Dang, Duy-Minh; Christara, Christina C.; Jackson, Kenneth R. An efficient numerical partial differential equation approach for pricing foreign exchange interest rate hybrid derivatives
http://espace.library.uq.edu.au/view/UQ:339896
In this paper, we discuss efficient pricing methods via a partial differential equation (PDE) approach for long-dated foreign exchange (FX) interest rate hybrids under a three-factor multicurrency pricing model with FX volatility skew. The emphasis of this paper is on power-reverse dual-currency (PRDC) swaps with popular exotic features, namely knockout and FX target redemption (FX-TARN). Challenges in pricing these derivatives via a PDE approach arise from the high dimensionality of the...2014-09-17T15:29:05Z
Dang, Duy-Minh; Christara, Christina C.; Jackson, Kenneth R.; Lakhany, Asif An elliptic problem with an indefinite nonlinearity and a parameter in the boundary condition
http://espace.library.uq.edu.au/view/UQ:336973
We establish the existence of solutions of nonlinear elliptic boundary value problems involving a positive parameter on the boundary. We also examine a profile of solutions of problem (1.2) when a parameter λ tends to 0.2014-08-12T04:18:24Z
Chabrowski, Jan; Tintarev, Cyril An enduring interest in classification: supervised and unsupervised
http://espace.library.uq.edu.au/view/UQ:282476
I have researched in the field of discriminant analysis for over 40 years and for nearly as long in the field of cluster analysis. Thus, I think it is fair to say that I have had an enduring interest in discriminant and cluster analyses, that is, in classification both supervised and unsupervised. The latter terminology is used outside of statistics in fields such as artificial intelligence, machine learning, and pattern recognition. However, the gap between these fields and statistics has narrowed appreciably over the years, and discriminant analysis and cluster analysis are also often referred in statistics as supervised classification and unsupervised classification, respectively.2012-09-26T09:09:02Z
McLachlan, G. J. An Erdos-Szekeres type problem in the plane
http://espace.library.uq.edu.au/view/UQ:267828
2012-02-17T16:44:51Z
Karolyi, Gyula; Toth, G. A nested sampling algorithm for cosmological model selection
http://espace.library.uq.edu.au/view/UQ:230512
2011-02-28T09:46:18Z
Mukherjee, Pia; Parkinson, David; Liddle, Andrew R. A new algorithm for stope boundary optimization
http://espace.library.uq.edu.au/view/UQ:316266
Stopes can be simply defined as an underground opening from which ore has been excavated. Selection of the best combination of available stope boundary will directly affect the profitability of the operation. While a few attempts has been initiated to generate the optimum stope boundary for underground mining, they fail to guarantee a true optimal-ity in three-dimension block models. This paper proposed a new methodology which can find optimum stope layout for a given resource model in three-dimensions. The paper initially critically reviewed important stope boundary optimisation studies thus far, then proposed a new methodology in order to find the best stope layout for a given deposit. Subsequently it applied the proposed methodology into a block model to test its ability of producing optimum results and demonstrated its applicability in a number of different scenarios. In the last section, further analysis on strategies to find the optimum stope boundaries were demonstrated. The results prove that the proposed algorithm can find optimum stope boundaries and layouts in three-dimension for different stope sizes and stope selection strategies.2013-11-27T12:12:48Z
Topal, E.; Sens, J. A new approach to crushing 3-manifold triangulations
http://espace.library.uq.edu.au/view/UQ:317666
2013-11-28T16:57:08Z
Burton, Benjamin A. A new approach to crushing 3-manifold triangulations
http://espace.library.uq.edu.au/view/UQ:381393
2016-03-05T17:28:06Z
Burton, Benjamin A. A new approach to multiwavelength associations of astronomical sources
http://espace.library.uq.edu.au/view/UQ:230520
One of the biggest problems faced by current and next-generation astronomical surveys is trying to produce large numbers of accurate cross-identifications across a range of wavelength regimes with varying data quality and positional uncertainty. Until recently, simple spatial ‘nearest neighbour’ associations have been sufficient for most applications. However as advances in instrumentation allow more sensitive images to be made, the rapid increase in the source density has meant that source confusion across multiple wavelengths is a serious problem. The field of far-IR and sub-mm astronomy has been particularly hampered by such problems. The poor angular resolution of current sub-mm and far-IR instruments is such that in a lot of cases, there are multiple plausible counterparts for each source at other wavelengths. Here we present a new automated method of producing associations between sources at different wavelengths using a combination of spatial and spectral energy distribution information set in a Bayesian framework. Testing of the technique is performed on both simulated catalogues of sources from GaLICS and real data from multiwavelength observations of the Subaru-XMM Deep Field. It is found that a single figure of merit, the Bayes factor, can be effectively used to describe the confidence in the match. Further applications of this technique to future Herschel data sets are discussed.2011-02-28T09:47:12Z
Roseboom, Isaac G.; Oliver, Seb; Parkinson, David; Vaccari, Mattia A new approximation of relaxed energies for harmonic maps and the Faddeev model
http://espace.library.uq.edu.au/view/UQ:243288
2011-07-06T12:45:02Z
Giaquinta, Mariano; Hong, Min-Chun; Yin, Hao A new bound on the size of the largest 2-critical set in a latin square
http://espace.library.uq.edu.au/view/UQ:62496
2007-08-14T17:54:58Z
Cavenagh, N. J. A new cosmological distance measure using active galactic nuclei
http://espace.library.uq.edu.au/view/UQ:262877
2011-12-04T07:57:39Z
Watson, D.; Denney, K. D.; Vestergaard, M.; Davis, T. M. A new device-independent dimension witness and its experimental implementation
http://espace.library.uq.edu.au/view/UQ:398957
2016-08-07T00:30:21Z
Cai, Yu; Bancal, Jean-Daniel; Romero, Jacquiline; Scarani, Valerio A new diagnostic test for cross-section uncorrelatedness in nonparametric panel data models
http://espace.library.uq.edu.au/view/UQ:285192
In this paper, we propose a new diagnostic test for residual cross-section uncorrelatedness (CU) in a nonparametric panel data model. The proposed nonparametric CU test is a nonparametric counterpart of an existing parametric cross-section dependence test proposed in Pesaran (2004, Cambridge Working paper in Economics 0435). Without assuming cross-section independence, we establish asymptotic distribution for the proposed test statistic for the case where both the cross-section dimension and the time dimension go to infinity simultaneously, and then analyze the power function of the proposed test under a sequence of local alternatives that involve a nonlinear multifactor model. The simulation results and real data analysis show that the nonparametric CU test associated with an asymptotic critical value works well.2012-11-15T11:58:19Z
Chen, Jia; Gao, Jiti; Li, Degui A new diketopyrrolopyrrole-based co-polymer for ambipolar field-effect transistors and solar cells
http://espace.library.uq.edu.au/view/UQ:286241
2012-11-25T00:23:02Z
Tandy, Kristen; Dutta, Gitish K.; Zhang, Yuliang; Venkatramaiah, N.; Aljada, Muhsen; Burn, Paul L.; Meredith, Paul; Namdas, Ebinazar B.; Patil, Satish A new family of N dimensional superintegrable double singular oscillators and quadratic algebra Q(3) ⊕ so(n) ⊕ so(N-n)
http://espace.library.uq.edu.au/view/UQ:373505
2015-11-17T00:31:34Z
Hoque, Md Fazlul; Marquette, Ian; Zhang, Yao-Zhong A new heuristic for detecting non-Hamiltonicity in cubic graphs
http://espace.library.uq.edu.au/view/UQ:418532
2017-01-19T14:01:10Z
Filar J.A.; Haythorpe M.; Rossomakhine S. A new method to create initially mass segregated star clusters in virial equilibrium
http://espace.library.uq.edu.au/view/UQ:265848
2012-01-24T11:50:12Z
Subr, L.; Kroupa, P.; Baumgardt, H. A new preventive maintenance strategy for items sold under warranty
http://espace.library.uq.edu.au/view/UQ:62477
When products are sold under warranty, the manufacturer incurs additional costs for warranty servicing. Preventive maintenance actions can be used to reduce this cost and these are worthwhile only if the extra cost incurred is less than the reduction achieved. In this paper we propose a new preventive maintenance policy where the parameters are selected optimally to minimize the total warranty servicing cost.2007-08-14T17:54:14Z
Jack, N.; Murthy, D. N. P.